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Deposition Sciences Inc. - Difficult Coatings - LB - 8/23

Etching with Gold Enables Improved Deep-UV Antireflective Optics

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Transmission and reflection characteristics get a boost without coatings.

Lynn M. Savage

The ability to diffuse or eliminate reflections is an important part of optics involving ultraviolet and deep-UV wavelengths. Antireflection coatings, which form interfering structures of low and high refractive indices, are ubiquitous. However, such coatings can be mechanically unstable and, because there are a limited number of refractive indices available to choose from in coating materials, it is difficult to find pairs that work in important wavelength bands. As an alternative to antireflection coatings, techniques such as electron-beam writing and mask lithography are used to...Read full article

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    Published: June 2008
    Glossary
    ultraviolet
    That invisible region of the spectrum just beyond the violet end of the visible region. Wavelengths range from 1 to 400 nm.
    Basic ScienceCoatingsdeep-UV wavelengthsindustrialMicroscopyResearch & TechnologyspectroscopyTech Pulseultraviolet

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